A flexible drilling and edge trimming mechanism

Abstract

The utility model discloses a kind of flexible drilling and edge scraping mechanism, including base, the lateral wall of base is fixedly connected with pneumatic cylinder, the output end of pneumatic cylinder is fixedly connected with L type fixed plate, L type fixed plate is fixedly connected with sliding plate, guiding mechanism is equipped between base and sliding plate, the one end fixedly connected with mounting plate of sliding plate away from base, motor is fixedly connected on mounting plate, the output end of motor is fixedly connected with rotating column.The utility model drilling part and edge scraping part coaxial arrangement, ensure that edge scraping part can accurately cover the inner wall of through hole after drilling;By integrating drilling part and edge scraping part in the same mechanism, through hole plug can be drilled and cleaned in single operation, which greatly improves the cleaning efficiency of the blocked through hole, while reducing the time cost caused by process separation, the device can automatically clean the pouring opening, replacing manual cleaning and saving manpower.

Description

Technical Field

[0001] This utility model relates to the field of drilling technology, and in particular to a flexible drilling and scraping mechanism. Background Technology

[0002] In the field of large-scale sand casting, the forming quality of the sand mold cavity directly determines the casting yield. As the key channel for injecting molten metal into the mold cavity, the smoothness of the gate is the core prerequisite for ensuring the stability of the casting process. At present, the industry generally uses a sand-shooting machine to perform a one-time sand-shooting forming operation on the sand box. Although this process can efficiently complete the mold cavity preparation, due to factors such as sand-shooting pressure, sand flowability and mold structure, a dense sand layer with a thickness of about 5mm often forms at the gate position after sand-shooting. This sand layer will completely block the gate channel. If it is not cleaned in time, it will directly lead to the inability of molten metal to be injected smoothly into the mold cavity, causing serious problems such as casting scrap or casting failure. Currently, there is no dedicated automated equipment for cleaning the sand layer at the gate, and the industry still mainly relies on manual operation. In the specific operation, workers need to use tools such as chisels and scrapers to first break up the sand layer at the gate, and then manually scrape the sand particles remaining on the inner wall of the gate. This manual cleaning method has many technical drawbacks: on the one hand, the operation process is cumbersome and depends on the experience of workers, resulting in extremely low cleaning efficiency. Especially in large sand mold casting production lines, the gate cleaning of a single sand box can take 15-20 minutes, which seriously restricts the overall production cycle. On the other hand, the precision of manual operation is difficult to control. During the scraping process, it is easy to cause scratches, dents and other damage to the mold cavity wall around the gate due to improper force control or tool angle deviation. After the mold cavity is damaged, an additional 2-3 hours are required for repair, which not only consumes a lot of manpower (usually requiring two skilled workers to cooperate in the repair), but also wastes materials such as sand and binder, resulting in a significant increase in production costs. To solve the above problems, this application proposes a flexible drilling and scraping mechanism. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flexible drilling and scraping mechanism. The drilling component and the scraping component are coaxially arranged to ensure that the scraping component can accurately cover the inner wall of the opening after drilling. By integrating the drilling component and the scraping component into the same mechanism, the drilling and unblocking of the opening and the scraping and cleaning of the inner wall can be completed in a single operation, which greatly improves the cleaning efficiency of the blocked opening and reduces the time cost caused by the separation of processes. This device can automatically clean the pouring port, replacing manual cleaning and saving manpower.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A flexible drilling and scraping mechanism includes a base, a cylinder fixedly connected to the side wall of the base, an L-shaped fixing plate fixedly connected to the output end of the cylinder, a sliding plate fixedly connected to the L-shaped fixing plate, a guide mechanism between the base and the sliding plate, a mounting plate fixedly connected to the end of the sliding plate away from the base, a motor fixedly connected to the mounting plate, a rotating column fixedly connected to the output end of the motor, a drill bit fixedly connected to the end of the rotating column away from the motor, and two symmetrically arranged replacement plates installed on the outer wall of the rotating column, with scraping plates fixedly connected to the opposite ends of the two replacement plates.

[0005] Preferably, the guiding mechanism includes two parallel guide rails fixedly connected to the side wall of the base, and two sliders slidably connected to the outer wall of each guide rail, and all four sliders are fixedly connected to the side wall of the sliding plate.

[0006] Preferably, the base is L-shaped, and reinforcing plates are fixedly connected to both the front and rear ends of the base. The sliding plate and the mounting plate are vertically arranged, and triangular stabilizing members are fixedly connected to both the front and rear ends of the sliding plate and the mounting plate.

[0007] Preferably, the drill bit is conical in shape, and the maximum diameter of the drill bit is equal to the diameter of the trajectory circle of the two scraping plates.

[0008] Preferably, the rotating column has two mounting slots, and the two replacement plates are located in the corresponding mounting slots.

[0009] Preferably, the scraping plate and the replacement plate are fixed together by welding, and two connecting parts are installed between the rotating column and the replacement plate.

[0010] Compared with the prior art, the advantages of this utility model are as follows: 1. By integrating the drilling and scraping components into the same mechanism, the blockage in the opening can be cleared and the inner wall scraped cleaned in a single operation without the need to change tools in steps. This reduces the number of positioning and adjustment operations, greatly improves the efficiency of clearing blockages in the opening, and reduces the time cost caused by process separation.

[0011] 2. The drilling component and the scraping component are coaxially arranged, and the maximum circle diameter of the drilling component matches the trajectory circle diameter of the scraping component, ensuring that the scraping component can accurately cover the inner wall of the opening after drilling, avoiding the problem of incomplete scraping or excessive scraping.

[0012] In summary, the drilling and scraping components are coaxially arranged to ensure that the scraping component can accurately cover the inner wall of the opening after drilling. By integrating the drilling and scraping components into the same mechanism, the drilling and scraping of the blockage in the opening can be completed in a single operation, which greatly improves the cleaning efficiency of the blocked opening and reduces the time cost caused by the separation of processes. This device can automatically clean the pouring port, replacing manual cleaning and saving manpower. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first structure of a flexible drilling and scraping mechanism proposed in this utility model; Figure 2 This is a schematic diagram of the second structure of a flexible drilling and scraping mechanism proposed in this utility model; Figure 3 This is a partial structural diagram of a flexible drilling and scraping mechanism proposed in this utility model; Figure 4 This is a cross-sectional view of the connecting component in a flexible drilling and scraping mechanism proposed in this utility model.

[0014] In the diagram: 1. Base, 2. Cylinder, 3. L-shaped fixing plate, 4. Sliding plate, 5. Slider, 6. Guide rail, 7. Mounting plate, 8. Motor, 9. Rotating column, 10. Drill bit, 11. Scraping plate, 12. Mounting slot, 13. Replacement plate. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-4 A flexible drilling and scraping mechanism includes a base 1, which serves as the basic support component of the entire mechanism. The base 1 is mounted on a robotic arm, which drives the drilling mechanism to perform drilling operations. The base 1 is L-shaped, and reinforcing plates are fixedly connected to both the front and rear ends of the base 1. The reinforcing plates enhance the structural strength of the base 1 and prevent it from deforming under stress. A cylinder 2 is fixedly connected to the side wall of the base 1. The cylinder 2 serves as a driving component, providing linear driving force to achieve the feeding action of drilling and scraping. An L-shaped fixing plate 3 is fixedly connected to the output end of the cylinder 2. The L-shaped fixing plate 3 connects the cylinder 2 and a sliding plate 4, transmitting the driving force of the cylinder 2 to the sliding plate 4. The sliding plate 4 is fixedly connected to the L-shaped fixing plate 3 and is used to support the mounting plate 7 and subsequent components, and achieves stable movement through a guiding mechanism.

[0017] A guide mechanism is provided between the base 1 and the sliding plate 4. The guide mechanism includes two parallel guide rails 6 that are fixedly connected to the side wall of the base 1. The guide rails 6 provide a moving path for the sliders 5 to ensure the accuracy of the moving direction of the sliding plate 4. Two sliders 5 are slidably connected to the outer wall of each guide rail 6. The sliders 5 cooperate with the guide rails 6 to restrict the movement of the sliding plate 4 on the set trajectory, while reducing the frictional resistance during the movement. All four sliders 5 are fixedly connected to the side wall of the sliding plate 4.

[0018] A mounting plate 7 is fixedly connected to the end of the sliding plate 4 away from the base 1. The mounting plate 7 is used to mount and fix the motor 8, ensuring the stability of the motor 8 during operation. The sliding plate 4 and the mounting plate 7 are perpendicular to each other. A triangular stabilizing member is fixedly connected to the front and rear ends of the sliding plate 4 and the mounting plate 7. The triangular stabilizing member utilizes the principle of triangular stability to enhance the connection strength between the sliding plate 4 and the mounting plate 7, preventing relative displacement of the connection points under stress. The motor 8 is fixedly connected to the mounting plate 7, and the motor 8 serves as the rotational power source for the drill bit 1. The drill bit 10 and scraper 11 provide rotational driving force. A rotating column 9 is fixedly connected to the output end of the motor 8. The rotating column 9 transmits the rotational motion of the motor 8 to the drill bit 10 and scraper 11, and serves as the mounting carrier for both. The drill bit 10 is fixedly connected to the end of the rotating column 9 furthest from the motor 8. The drill bit 10 achieves the function of drilling and cleaning the blocked opening by rotating, thus clearing the blockage. The drill bit 10 is conical in shape, and its maximum diameter is equal to the diameter of the trajectory circles of the two scraper 11s. This dimensional setting ensures that after drilling, the drill bit 10... The scraper 11 can effectively scrape the inner wall of the drilled hole. Two symmetrically arranged replacement plates 13 are installed on the outer wall of the rotating column 9. The replacement plates 13 connect the rotating column 9 and the scraper 11, allowing the scraper 11 to rotate synchronously with the rotating column 9. Two mounting slots 12 are provided on the rotating column 9 to provide installation space for the replacement plates 13, ensuring the stability of the connection between the replacement plates 13 and the rotating column 9. The two replacement plates 13 are located in their respective mounting slots 12, and scraper blades are fixedly connected to the opposite ends of the two replacement plates 13. Plate 11, the scraping plate 11 scrapes the inner wall of the drilled hole by rotating to remove residual blockages. The scraping plate 11 and the replacement plate 13 are fixed together by welding. Two connecting parts are installed between the rotating column 9 and the replacement plate 13. The connecting parts include a telescopic rod and a spring. The two ends of the telescopic rod are fixedly connected to the rotating column 9 and the replacement plate 13 respectively. The spring is set inside the telescopic rod. The connecting parts allow the scraping plate 11 to float in the mounting groove 12, which plays a role in buffering and avoiding obstacles during drilling and scraping.

[0019] In this invention, when it is necessary to drill and clean a blocked opening on a workpiece, the position of the drill bit 10 is adjusted by an external robotic arm to align with the blocked opening. The cylinder 2 is activated, and its output drives the L-shaped fixed plate 3, sliding plate 4, mounting plate 7, motor 8, rotating column 9, drill bit 10, and two scraping plates 11 to move. The movement is stabilized by the cooperation of the slider 5 and the guide rail 6. The motor 8 is then activated, and its output drives the rotating column 9, drill bit 10, two replacement plates 13, and scraping plates 11 to rotate, ensuring that the drill bit 10 and the two scraping plates 11 are coaxially aligned. The cylinder 2 inserts the drill bit 10 into the opening, and the rotation of the drill bit 10 opens the blocked opening, allowing the blockage to be discharged from the other end. The rotation of the two scraping plates 11 scrapes away the inner wall of the opening, preventing any blockage from remaining and ensuring the cleanliness of the inner wall after drilling.

Claims

1. A flexible drilling and scraping mechanism, comprising a base (1), characterized in that, A cylinder (2) is fixedly connected to the side wall of the base (1). An L-shaped fixing plate (3) is fixedly connected to the output end of the cylinder (2). A sliding plate (4) is fixedly connected to the L-shaped fixing plate (3). A guide mechanism is provided between the base (1) and the sliding plate (4). An installation plate (7) is fixedly connected to the end of the sliding plate (4) away from the base (1). A motor (8) is fixedly connected to the installation plate (7). A rotating column (9) is fixedly connected to the output end of the motor (8). A drill bit (10) is fixedly connected to the end of the rotating column (9) away from the motor (8). Two replacement plates (13) are installed on the outer wall of the rotating column (9) in a symmetrical arrangement. Scraping plates (11) are fixedly connected to the opposite ends of the two replacement plates (13).

2. The flexible drilling and scraping mechanism according to claim 1, characterized in that, The guiding mechanism includes two parallel guide rails (6) fixedly connected to the side wall of the base (1). Each guide rail (6) has two sliders (5) slidably connected to its outer wall. All four sliders (5) are fixedly connected to the side wall of the sliding plate (4).

3. The flexible drilling and scraping mechanism according to claim 1, characterized in that, The base (1) is L-shaped, and the front and rear ends of the base (1) are fixedly connected with reinforcing plates. The sliding plate (4) and the mounting plate (7) are vertically arranged, and the front and rear ends of the sliding plate (4) and the mounting plate (7) are fixedly connected with triangular stabilizing members.

4. The flexible drilling and scraping mechanism according to claim 1, characterized in that, The drill bit (10) is conical in shape, and the maximum diameter of the drill bit (10) is equal to the diameter of the trajectory circle of the two scraper plates (11).

5. The flexible drilling and scraping mechanism according to claim 1, characterized in that, The rotating column (9) has two mounting slots (12), and the two replacement plates (13) are located in the corresponding mounting slots (12).

6. The flexible drilling and scraping mechanism according to claim 1, characterized in that, The scraping plate (11) and the replacement plate (13) are fixed together by welding, and two connecting parts are installed between the rotating column (9) and the replacement plate (13).

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